Loom attachment



J. L. DAVIS ET AL LOOM ATTACHMENT July 31,1923. 1,463,614"

"Filed Feb. 15, 1922 2 sheets-sheet 1 Ki: I]! i Y gvwewtozs;

July 31, 1923. 1 63. 14

- J. L. DAVIS ET AL v LOOM ATTACHMENT Filed 1:"eb. 1a, 192:; 2 Sheets-Sheet 2- [a'uz'afl (3'00,

@513 v I r .42... I

' use in connection with its particular picker Patented July 31, 1923.

UNITED JOHN L. DAVIS AND LoUIs n- COOLEY, or GBEENVJILLE, SOUTH enacting.

LOOM ATTACHMENT.

Application fiIed February 1a 1922. Serial No. 535,124.

To all whom it may concern:

Be it known that we, JOHN L. DAVIS and LOUIS D. CooLnY, citizens of the United States, residing at Greenville, in the county of Greenville and State of South Carolina, have invented new and useful Improvements in Loom Attachments, of which the following is a specification.

This invention relates to an attachment for looms, and particularly to the picker stick actuating mechanisms of box looms of that type in which each picker stick is pivotally mounted upon a bracket, commonly called a picker foot, the said picker supporting brackets being mounted upon the opposite ends of the rocker shaft which is operatively connected with the swords of the lay.

In looms of this type as generally constructed, the picker sticksare connected by straps to a return spring or springs which are more or less lengthy and, by reason of their length and arrangement, cause more or less trouble and annoyance, besidesbeing costly to replace and to keep in working condition.

One object of our invention is to provide means whereby this objection to the use of lengthy springs and straps" is avolded and a type of return spring provided which 1s compact, arranged so as to be sheltered from injury and which is durable and, when damaged or broken, may be replaced at a com-v paratively low cost.

A further object of the invention is to provide a novel means for mounting the return spring upon a picker foot 1n such mane ner as to secure simplicityand compact-.

ness of arrangement as well as .a mutual bracing between the picken supporting part of the picker foot and the spring support.

A still further object of the invention is to provide a novel type of supporting means and return spring for each picker stick, which spring may be :adjusted to regulate its sensitiveness of action as required for stick.

The invention consists of the features of section. being indicated by the' line of Figure 2. Figure 2is "a side elevation of theparts shown in Figure 1, and 1 Figure 3 is a perspective view of the spring supporting bracket.

Referring to the drawings, '1 designates i a portion of a side of a loom frame having ournaled therein one end of a transverse rocker-shaft 2, which shaft extends across the loom and is journaled atits opposite end in the opposite side ofthe loomframe V and actuates the lay swords in a well known way. Each end of the shaft 2 carries a plcker foot 3 for supporting the picker stick present instancewe have shown-the mounting atone side of theloom only, it being understoodthat the same is duplicatediat the opposite side of the loom. 5

As shown, the picker foot 3 is in the form of a substantially L-shaped bracket embodying a main arm 5 fixed at its innere'nd to witha bifurcated portion 7 extending at l V I right angles to the frame and approximatelyparallel withthe' arm 5, through the slot of which bifurcated portion 7 the stick 4 extends. The side walls: of this bifurcated portion-,7 are properlypierced. for the .passage of'a bolt 8 on which the picker. stick 4 is pivotally' mounted ;for recli'procating' motion by any suitable type of actuating mechanism; Ajfl'ange or web 9 preferably" re'inforces thebifurcated part from theiarm 6 and is disposed in the'sp'ace between said arm 6 and the adjacent wall-ofthe bifurcation and such' fiange- 9 may serve forthe I attachment thereto of airod 1O connecting the picker foot with a part of theloom. -=A

guide bracket 11 is secured to" the inner side i of the arm 5-bysp-aced bolts 12 and 13, and f this bracket is formedwitha guide eye 14:

to receive-the usual.spring controlled *rod forming part of the shuttle box actuating means. V '1 a In accordance with our invention we pro.- vide a return spring bracket. 15, preferably 70 4 at the adjacent side of the loom. In, the I made of cast metal. This bracket includes an outwardly projecting arm 16 which is disposed to lie against the outer ear of the bifurcation 7, and the body portion of this bracket lies'fiush against the inner or rear face of the supporting arm' 6 of the main arm. The inner end of bracket 15 is formed with a rearwardly extending arm 17 which, when the device is applied, is disposed parallel with and in spaced relation to the main arm 5. The arm 17 is provided with an aperture 18 through which bolt 13 carried by arm 5 passes, to thus securelyanchor the inner end of the bracket.

Extending rearwardly from the outer end of the body portion 15 of the return spring bracket is a leg member 19, offset slightly but disposed substantially parallel with the forwardly projecting arm 16. The lower end of this leg portion 19 is provided with an opening 20 to receive and rigidly mainta'inthe shank 21 of a'conventional type of spring-return drum '22. The opening 20 may be elongated as shown, to permit of necessary adjustment 'of the spring drum. This spring drum has secured to its surface one end of, a strap or other flexible member 23'; the opposite end of said member being connected'to the lower end of the picker staff 4.

The bracket 15 is so constructed as to lie snugly against the offset portion 6 of the picker foot, and is rigidly secured thereto 7 bolts8 and 13. A The bracket thus properly reinforces the picker foot and is main tained thereon in such manner that breakage or either the bracket or the picker foot is rendered practically impossible. The leg 19 is so proportioned that the spring drum 22 held thereby will train the'flexible strap or band 23 in substantially a horizontal line, whereby the maximumof eliiciency of the spring retarding or retracting device is ob tained. By reason of the elongated opening 20 in the. leg, it is apparent that minute-adjustment of the spring-return bracket be made.

i From foregoing it is apparent that we have prov ded a device of extremely simple construction for effectively returning the picker staff to proper position without the use of objectionable. coil and band springs heretofore used for similar pur 'poses, and a device whereinthe more delicate parts thereof-are sheltered against in "jury; The particularc onstruction of the bracket enables it tobe readily applied to the main arm oftlooms of this 'type now in use, and the adjustment may be made without the exercise ofnnusual skill or intelligence.-

Havingthus fully described our invention, we claimr j 1; The combination with a picker foot.

said piker foot having an arm provided a supporting member carried by the rearwardly projecting offset arm of the bracket and extending-inwardly in rear of the bifurcated portion of the picker foot, a spring drum carried by said supporting member, and a strap connecting said drum with the picker stick.

2. The combination with a picker foot, of bracket shaped to conform to a portion of said picker footand lying flush against the same,vthe said picker foot having a bifur- H cated portion to rockably support the picker arm, an arm on said bracket lying against said bifurcated portion, thejsaid arm having an opening therein to correspond with the pivotal connection of ,thepicker arm with said bifurcatedportion, means for securing 9 said bracket to. said foot, a spring drum maintained by said bracket, and a flexible member connecting said drum with said picker arm. 1

8. The combination with a picker foot, the said picker foot having an offset-member and a bifurcated portion torockably support the pickerarm of a bracket shaped to conform to said offset portion of said bracket, a rearwardlyextending arm at one :end of said bracket disposed parallel to a portion of said picker foot, a bolt connecting said arm tosalid picker foot portion, a -forwardly projecting-arm at the other end of said bracket lying against a portion ofsaid angularly disposed arm of said pickerfoot, the said forwardly projecting arm having an opening therein to-receive the pivot boltof a picker stick, a leg projecting rearwardly from said bracket, a'spring drum supported by said leg, and a flexible member connecting sai l drum with said picker arm. I 4. In an attachment for, looms, a pifcker stick return spring supporting bracket ineluding a straight body portion, an arm olfsaid arm and le bein connected b an ofl' set portion disposing the same to lie in different vertical planes, the said bifurcated v offset, arm and leg being formed with open ings, a bolt passing through the openings in the bifurcated offset and arm and fastening said arm to said offset, a picker stick pivotally engaging said bolt, a fastening member engaging the opening in the leg, and a return spring device supported by said fastening member and connected to the picker stick. I

In testimony whereof We aflix our signa- 25 tures in presence of two witnesses.'

J OHN L. DAVIS. V LOUIS D. COOLEY.

Witnesses: V

J. P. BALLENGER, FANNIE C. S0011. 

